Hello, i have to design a program with an output similar to what is shown above. i have a start to the code and it is working correctly so far. i am having trouble figuring out how to approach adding multiple loops so it will keep adding and getting more sums. can anyone help me out? thank you in advance

Sample Output NOTE: there are two separate sample outputs of the same program below, divided into each box. Please enter a four-digit number: 57894 Sum of the digits: 5 + 7 + 8 + 9 = 29 Sum of the digits of the sum: 0 + 0 + 2 + 9 = 11 Sum of the digits of the sum of the digits of the sum: 0 + 0 + 1+12 Please enter a four-digit number: 1423 Sum of the digits: 1 + 4 + 2 + 3 = 10 Sum of the digits of the sum: 0 + 0 + 1 + 0 = 1 Sum of the digits of the sum of the digits of the sum: 0 + 0 + 0+ 11 Ontional Ronis (+2 noints) digits.cpp" + x 4 digits (Global Scope) 1 2 3 4 5 6 7 8 9 10 #include I using namespace std; Fint main() { int digit, sum=@,m; cout > digit; while (digit !- 0) { m= digit % 10; sum sum + mg digit digit / 10; } cout